Cultivator.



No. 689,359. Painted Dec. l7, [90L E. HAIMAN.

OULTIVATOR.

(Application filed July 22. 1901) (In Imam 2 sheetssheet' 1.

[\TIEE r INyE Tum BY 77 77 M I Patented Dec. [7,1901.

E. HAIMAN.

CULTlVAl'0-R. (Application filed July 22, "1901.)

(No Model.

2 Sheds-Sheet 2.

v @JNVENIU UNITED STATES ATENT Prion."

EEFKS HAIMAN, OF CLEVELAND, OHIO, ASSIGNOR TO THE EMPIRE PLOW COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 689,359, dated December 17,

Application filed July 22, 1901. Serial No. 69,240- (No model.)

To all whom it may concern:

Be it known that I, ELIAS I-IAIMAN, a citizen of the United States, residing at Cleveland, in the county Guyahoga and State of Ohio, have invented certain new and useful Improvements in Cultivators; and I do declare that the following is a full, clear, and exact description of .the invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to cultivators; and the object of the invention is to provide a cultivator with means for adjusting the positions of the side bars in respect to the central bar at the will of the operator through a lever, and which mechanism is adapted to be both unlocked and moved by the leverin the same operation and practically at the same time and to automatically lock itself again when movement ceases, all substantially as shown and described, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of a cultivator embodying my invention, in which certain unimportant parts are broken away to more clearly disclose others below. Fig. 2 is a side elevation of the cultivator with the near side bar removed. Fig. 3 is an enlarged side elevation of my in1- proved automatic locking and unlocking device, showing a section of the central beam or bar and said mechanism in one of its forms illustrated thereon. Fig. tis an elevation of the parts seen in Fig. 3 looking in from the right. Fig. 5 is a vertical central sectional elevation on a line corresponding to so as, Fig. 4. Fig. 6 is a perspective view of one form of yoke shown in its associated positions with other parts in Figs. 3, 4:, and 5. Fig. 7, page 1, is a perspective view of the dog or pawl used with this mechanism; and Figs. 8 and 9 show a modification.

As above indicated,I have produced a mechanism for spreading or contracting the side bars of a cultivator, whether it be of the type that is known as a sulky-cultivator or one with whichthe operator is required to walk, as in the style here shown, whereby all means for efiecting adjustments which would ordinarily require the stopping of a team to make are wholly done away with, and the operator is given complete control of the implement in these respects while it is in motion and is enabled to spread or narrow the travel of the side bars and to play them laterally, if he prefers, by or through the manipulation of a single lever, as will appear more clearly in the further description of the invention.

In the construction of cultivator thus shown A represents the central beam or bar, and B the side bars. On the top of the central bar toward its rear end I provide a series of teeth a, cut into said beams in this instance; but they might be otherwise formed or provided. Upon bar A and adapted to slide over said teeth or notches I have placed a sliding member C of box shape, as here shown, and pro vided with ears or projections c at its opposite sides to connect links D, which are joined at their outer ends to side bars 13 and serve to adjust and hold said bars laterally through the movements of said box on bar A, as will now appear.

E represents a so-called yoke, one shape or style of which is clearly shown in Figs. 3 to 6, and in Fig. 6 especially. The said yoke is constructed and arranged to have a rocking or tilting movement within limits and is the intermediate member or part between box 0 and locking dog or pawl G, Figs. 5 and 7. structurally the said yoke is adapted to be set down over the double-sided standard 0,

forming a part of box 0, and said standard is closed across its top and perforated to receive the stem or spindle g of dog G, which extends up through the top of said standard and is confined and guided thereby. Trunnions g on the opposite sides of dog G engage down into the open slots 2 in the center and top of the sides of the yoke, and the said dog is held andcontined laterally by the said yoke, while in the opposite direction it is confined by the sides of standard 0, so that it has to remain in working position and is limited to a direct up-and-down movement when moved at all. Normally its tooth g at its bottom is pressed down by spring F into engagement with one of the notches or teeth a. in the top UL oar A, and W1 vice is looked a by accident or posely made by purpose.

and this i connecte back of one or the other fulcrum point 0 rises at the 0th tion the par bars of tracted. ever wa E is til box the

y j ted f1 d by link it, W tion 3 at one each end ada C; but

cultivator bviously in mu or operator, and the fix or rocking is to raise suificiently to releas gagement wit] 1 barien so on gainst otherw when b 4 h dog to be spread or either stment is to be through st effect ment shift is purs provided for this e means is yoke E, ever H, d on pin Fig. ansverse bearing- 0 rest down on the the yoke is operated ecomes the pivot or the yoke rocks and cording to the direc moved and the side conease and Whichmade the yoke lever H by the of such tilting G against its spring 9 from engaged the entii' e all possible move ise until a the mean The immediat s actuated through hand-l hich is pivote side of said yoke S a tr pt'ed t iuruficer ed to be ellgd instead of only one 6; but yoke E might al6?::= tions like 3, if preferred. The device or dog G is used here in theQl form above, and its studs or pins 9 rest I. holes 12 of the yoke, While cross-bars 13 on the yoke are the fulcrums or pivots on which the yoke rocks When tilted, the same as ooeurs in the form Fig. 6, on cross-bars 4. The whole id 1 11 erely;

either dire dog G will fore.

What I claim is- In cultivators, a cen any-movable side btlflilll tral beam and laterbination with an operating-lever, and means I Witness my hand to ihe foregoing specifion said central beam adapted to be both unl cation this 17 th day of July, 1901. locked and adjusted in a single operation of ELIAS HAIMAN. said lever, said means comprising an auto- 1 5 inanically-locked dog and a rocking part con- Witnesses:

nected with said lever and arranged to disen- R. B. MOSER, gage said dog, substantially as described. H. E. MUDRA. 

